Tropical wood polymer nanocomposite (WPNC): The impact of nanoclay on dynamic mechanical thermal properties
In this study, wood polymer nanocomposites (WPNCS) were manufactured from five Malaysian tropical wood species by vacuum-impregnation attended by in situ polymerization using phenol–formaldehyde resin and montmorillomite nanoclay. Percentage weight gain and density of wood polymer nanocomposites...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2012
|
| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/9198/ http://ir.unimas.my/id/eprint/9198/1/Tropical%20wood%20polymer%20nanocomposite%20%28WPNC%29%20The%20impact%20of%20nanoclay%20on%20dynamic%20mechanical%20thermal%20properties%20%28abstract%29.pdf |
| Summary: | In this study, wood polymer nanocomposites (WPNCS) were manufactured from five Malaysian tropical
wood species by vacuum-impregnation attended by in situ polymerization using phenol–formaldehyde
resin and montmorillomite nanoclay. Percentage weight gain and density of wood polymer nanocomposites
depended on wood species. Thermo-mechanical properties of wood samples were investigated by the
dynamic mechanical thermal analysis (DMTA) over the temperature range of �100 �C to 200 �C. The
intrinsic properties of the components, morphology of the system and the nature of interface between
the phases were also determined through DMTA test. Storage modulus (E0) of WPNC samples exhibited
significant improvement over the temperature range, in both glassy region and rubbery plateau in relation
to their corresponding raw wood samples and wood polymer composites (WPCs). Furthermore,
damping (loss tand) peaks of all wood species were lowered by PF-Nanoclay system treatment, an indication
of improved surface interphase of wood. Dynamic Young’s modulus (Ed) of wood was also calculated
using free–free vibration testing. A significant increment was obtained for the PF-Nanoclay
impregnated WPNC samples. |
|---|